Rail-drilling machine.



r B. A. NELSON. RAIL DRILLING MACHINE. APPLICATION FILED APR. 19. I9I7-.

1 ,246, 144:. Patented Nov. 13, 1917. I

2 SHEETS-SHEET I.

=B. A. NELSON. RAIL DRILLING MACHINE. APPLICATION FILED APR. 1 9. 19!?- 1,246,144 Patented Nov. 13, 19171.

2 suens snsgr 2.

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BER/IT A NELdO/V BEmvrA. NELSON, or MusKEGomMIdmeANI I I BAIL-DRILL N MAo rivE. Y V

'Be i' lm'ownthat'I' BnRivT Al 'NnnsoN, a

' citizen of SWeden, residing. at Muskego'n, i in the countyfof Muskegon and State of provements ing ma'chine which maybe quickly adjusted to and from drilling position. 1

track;

'ji'rhird, to provide an awed an drill- 1 ing/machine which (may be 'trundled or" pushedfalong upon'thetrack or upon the ground. I I v Fourth, to provide'animproved rail drilling machine'which is simple and economical.

and of large capacity.

from the detailed description to follow.

I accomplish the ob jects'of my invention. bythe devices and means describedin the v The invention is clearly definedand-pointed out inthe claims;

A structure which is a preferredembodiment of myinventionis clearly illustrated in the accompanying, drawing forming following specification.

l part of this specification, in which my; improved rail drilling hmachine with; the parts inthe position occupied when the machine is trundled or I pushed along on. a track.

Fig. II is a' detail p1 machine adjusted to'a track, the track jheing shown in'lconventional' form.

' being shown in the Fig. IV is "of II; V i

r Fig. v is a detai llview partially'in sec-' Sect a linfdofresponding mine e e 7' Specification of Letters Patent.

I Second, to provide an improved rail drilling machine which is or light weight an easily adjustedto and removed from gthej Further objectspfand objects relatingto A I structural details, Willi-definitely appear t to and from the track. I p v -The 3x163, the longitudinal frame memg'; I I

an view showing the 1 r a V V 1 movement ofthe spindles without an enlargeddetail transverse7 section on a line'corresponding to line Fig. VI is detailpartially;

PatentediNovr 13, 19 17. f 1 "A ppiieatidnfildApril19,1917 Seria1No;183%195. I l i f Fig. 1v, Showing (15mins of: the: h {a structure;

)In the drawing, similar" reference 'characters refer to similar parts throughout the several views, and the sectional views are" taken looking in the direction of the little arrows at the ends of the section" lines;

Referring to the drawing l" -1 represents the rails o f'a railway track. I 'pro-" vide a pair of flanged track wheels 2-adaptplings 5. A transverse supporting barf6 is secured to the longitudinal members 4 by;

means goi the clips 7 1 This transversebar ispreferably formed of T-firon' and isadapted to rest upon the rails when. the machine; j]

is in-drilling position." The rear ends" of] I the-longitudinal frame members' meek tended rearwarclly and upwardly to provide handles f8 by means of'which the ma: chine may be handled in transporting along the'track for ground or In adjusting bers 4an'djthe supporting bar 6 are con nected to p'rovidearigid frame; The sup:

engage over the'rail as shown in Fig. IV. 1 On theunder sideof the supporting bar-'16"? I secure the drill frame .10 whichis dis posed withits outer end 11 spaced'fr'om the} Figure I is a front perspective view of hookso as to receive the head of a rail he tweenthem, see Fig. .IVQ, z

spindles 13 are disposed; These drill dles iareiprovidedat their front ends with:

chucksl l for the drills 15 and at their rear end's'fvvithpinion'slfi, The driving shaft 17 Fig. III is .anjinverted' detail View show} ing the arrangement ofthe drills, the;'dril1s .7

partially advanced pob'etwee'nthe spindles.- and is provided with is mountedfon the rear pair of hangers 12 a' inion 18 of suchlengthas to permit aiz'ial the pinions out of mesh.

carryin 111 05, 7 The feed bar 19 i erforated toreceivef thef'feed IeverQIvVhich isbifurcated at its lower end, its'arms beingpiv'otedat 22 to" the drill frame, the lower ends of the arms being connected by the links 23 to the ends of the feed bar.

The motor designated generally by the numeral 2% is mounted on the axle and supporting bar 6, by means of the brackets 25 and 26 respectively. The motor is connected to the driving shaft 17 by the sprocket chain 27, the sprocket 28 on the motor shaft and the sprocket 29 on the driving shaft. Various of the parts are shown more or less in conventional form as their structural de tails form 110 part of this invention.

lVith the parts thus arranged the machine may be trundled along the track to the point of drilling and adjusted or engaged with the track merely by dropping the supporting bar 6 thereon with the hook 9 in engagement with the rail. By means of the motor and the feed means described the drilling operations may be quickly performed and the machine is released as soon as the drills are retracted. The machine may be quickly removed from the track as occasion may require. It is light in weight and if desired the operator may step be tween the axle and supporting bar and grasping these parts lift the machine to and from the rails, or it may be manipulated to and from the rails by means of the handles 8.

I have illustrated and described my improvements in an embodiment which is simple and which I have found to be very practical. I have not attempted to illustrate or describe various modifications and other adaptations which I contemplate as I believe the disclosure made will enable those skilled in the art to which my invention relates to embody or adapt the same as may be desired.

Having thus described my invention, what I claim; as new and desire to secure by Letters Patent is:

1. In a rail drilling machine, the combination with a pair of track wheels, an axle on which said wheels are mounted, a pair of longitudinal members extended to provide handles by means of which the machine may be trundled, a support bar mounted on said longitudinal members and adapted to rest upon the rails and provided with a rail hook at one end, said axle, longitudinal members and support bar constituting a rigid main frame, a drill frame mounted on the under side of said support bar with its outer end in a spaced relation to said rail hook to receive a rail head between, drill spindles mounted for axial movement in said drill frame and provided with spindle pinions at their inner ends, a driving shaft provided with a driving pinion meshing with said spindle pinions, said driving pinion being of such length as to permit axial movement of said spindle pinions, means for feeding said spindles, a motor mounted on said main frame, and

driving connections from said motor to said driving shaft.

2. In a rail drilling machine, the combination with a pair of track wheels, an axle on which said wheels are mounted, a pair of longitudinal members extended to provide handles by means of which the machine may be trundled, a support bar mounted on said longitudinal members and adapted to rest upon the rails and provided with a rail hook at one end, said axle, longitudinal members and support bar constituting a rigid main frame, a drill frame mounted on said support bar, drill spindles mounted for axial movement in said drill frame and provided with spindle pinions at their inner ends, a driving shaft provided with a driving pinion meshing with said spindle pinions, said driving pinion being of such length as to permit axial movement of said spindle pinions, means for feeding said spindles, a motor mounted on said main frame, and driving connections from said motor to said driving shaft.

8. In a rail drilling machine, the combination with a pair of track wheels, an axle on which said wheels are mounted, a pair of longitudinal members extended to provide handles by means of which the machine may be trundled, a support bar mounted on said longitudinal members and adapted to rest upon the rails an d provided with a rail hook at one end, said axle, longitudinal members and support bar constituting a rigid main frame, a drill frame mounted on said support bar, drill spindles mounted for axial movement in said drill frame and provided with spindle pinions at their inner ends, a driving shaft provided with a driving pinion meshing with said spindle pinions, said driving pinion being of such length as to permit axial movement, of said spindle pinions, a feed bar for said spindles, a feed lever bifurcated to embrace said supporting bar and drill frame, links connecting the arms of said feed lever to the ends of said feed bar, a motor mounted on said frame, and driving connections from said motor to said driving shaft.

4. In a rail drilling machine the combination with a pair of track wheels, an axle on which said wheels are mounted, a pair of longitudinal. members extended to provide handles by means of which the machine may be trundled, a support bar mounted on said longitudinal members and adapted to rest upon the rails and provided with a rail hook at one end, said axle, longitudinal members and support bar constituting a rigid main frame. a drill frame mounted on the under side of said support bar with its outer end in a spaced relation to said rail hook to receivea rail head between, a drill spindle mounted for axial movement in said drill frame, and a feed means for said spindle.

5. In a rail drilling machine,the combination with a pair of track wheels, an axle on which said wheels are mounted, a pair of longitudinal members extended to provide handles by means of which the machine may be trundled, a support bar mounted on said longitudinal members and adapted to rest upon the rails and provided with a rail hook at one end, said axle, longitudinal members and'support bar constituting a rigid-fmain frame, a drill frame-mounted on said sup- 7 port bar,a drill spindle mounted for axial movement in said drill frame, and a feed means for said spindle.

6. In a rail drilling machine, the combination of a main frame comprising an axle,

longitudinalmembers constituting handles, and a supporting bar adapted to rest upon the rails and provided with a rail engaging hook, track wheels on said axle, a drill frame mounted on theimder side of said supporting bar with its outer end in a spaced relation to-its said rail hook to receive a rail head between, a drill spindle mounted on longitudinal members constituting handles,

and a supporting bar adapted to rest upon the rails and provided with a rail engaging I hook, track wheels onsaid axle, a drill frame mounted on said supporting bar, a, drill spindle mounted on said drill frame'for axial movement and provided with a driving pinion meshing with said spindle pinion, said driving pinion being of such length. as to permit axial movement of said drill spindle pinion as the spindle is fed and retracted, and a motor mounted on said main frame and having driving connections to said driving shaft.

8. In a rail drilling machine, the combination of a main frame comprising an'axle,

longitudinal members constituting handles, and a supporting bar adapted to rest upon the rails and provided with a rail engaging hook, track wheels on said axle, a drill frame mounted on' said supporting bar, a drill spindle mounted on said drill frame for axial V movement and provided with a'pinion, adriving shaft provided with a driving pinion meshing with said spindle pinion, said driving pinion being of such length as to permit frame mounted on said supporting drill spindle mounted on said drill frame,

as the spindle is fed and retracted, a feed bar operatively associated with said drill spindle, a feed lever, and a link connecting said lever to said feed bar.

9. In a rail drilling machine, the combination'of track wheels, a frame comprising, a supporting bar adapted to rest on the rails l and support one end of said frame during drilling operations and provided with a rail hook, said frame beingprovided' with a handle by means of which the supporting bar can be raised from the track and the machine may be trundled along a track, a drill bar, a

axial movement of said drill spindle pinion:

and a feed lever for said drill spindle car- I ried by said supporting bar. r

10. In a rail drilling machine, the combi nation with track wheels, of a frame adapted to be trundledalong a track on said wheels,

a supporting bar adapted to rest on the rails and support one end of said frame during drilling operations and provided'with arail hook, a drill spindle carried by said frame, and a motor mounted on said frame and having driving connections with" said 'drill spindle.

11. In a rail drilling machine, the combi nation with track wheels, of a frame adapted to betrundled along a track on said Wheels,

V a supportingbaradapted to rest on the rails i and supportone end ofsaid frame during i drilling operations and provided with a rail hook, and a" drill spindle carried by said frame.

12. In a rail drilling machine, the combination with track wheels, of a frame adapted to bevt'rundled along a track, a supporting bar adapted to rest on the rails and support one end of said frame during drilling operations, a rail hook carried by said bar, and a drill spindle carried by said bar.

13. In a rail drilling machine, the combination with a frame, of wheels for supporting one end of said frame, a supporting bar for supporting the other end of said frame during drilling operations adapted to rest upon the rail to be drilled and anchor the machine in drilling relation thereto and to belifted from the track to permit the 'ma- I chine to be trundled along thetrack on said wheels, adrill spindle carried by said bar,

and means for driving said drill spindle;

In witness whereof, I have hereunto set my hand and seal in the presence of two witnesses.

BERNT A. NELSON. [L. s.] Witnesses:

KATE MCSHANNOCK, DORA VAN AUKEN.

Qopies oi this patent maybe obtained for five cents each, by addressing the "Commissioner of Patents,

Washington, D. 0. 

